The common view was an elderly man or woman, with an operatic voice, next to a grand piano, watching the singer do a few silly sounds and sustained open vowels numerous times. And while the set up of this scenery is pretty much still the same to this day, true vocal training goes beyond a lesson with a teacher.
It's not a matter of paying the most expensive teacher, or going to lessons just because someone tells you to do, or because they "gifted" you a few lessons to try it out.
Vocal training is a physical and mental act.
Having a professional voice teacher is indeed the first step and a very important one, but he or she will only be there to guide you, walking with you along the road, explaining fundamentals and providing the tools to free your voice. But those are just the first steps.
You can even call them baby steps.
As with infants, it takes time for their legs to get stronger and meanwhile, you may see a parent helping their child to stay on his or her feet, or the infant himself using a chair or a toy as a support. But one doesn't learn to walk while holding to someone's hand or a chair. Once the infant's legs are strong enough, he or she will be ready for those true steps.
Thus, as a teacher, I am here to hold your hand, to keep you from falling down. It is my job to teach you the good form and technique to free your instrument of unwanted tension, remove any behaviors that may be tampering your performance and finally, protecting you from injuring yourself. However, for you to become a better and singers and make it permanent, that only depends on you.
Vocal training requires time, not just ten or fifteen minutes, you have to squeeze at least half an hour to begin with. It also requires focus and good mentality. The mind governs over the voice and it's easy to forget about this and think the opposite.
Vocal training is hard work. You do this every day, you stick to it till the end and you do it right. Sometimes it may even feel tedious or unnecessary, but trust me, as a singer that had to start from the very bottom. Those high notes will not get to you by paying $200 for a vocal coach. It's all about you, you are the singer after all and with it, you must face the responsibility of being the voice of your band, brand or name (your name).
So, while it's always fun doing that you love, try not to forget that vocal training requires concentration and also seriousness. Your instrument is always at risk after all. Don't take it lightly. Work hard and wise, take your time, enjoy it but don't lose track of your goals and the requirements that need to be fulfilled to make them true.